Honeywell Prestige 2.0 THX9421 Manual page 35

ISU Installer Setup
Number Name
Off
3120 Outdoor
Temperature 5° F to 65° F (in 5° F increments)
Lockouts:
Backup Heat
Lockout
1 to 12 CPH
3130 Radiant Heat Cycles
Per Hour - Stage 1
Note: "Stage 1" is not
displayed if there is
only 1 stage of
Radiant Heat.
1 to 12 CPH
3130 Radiant Heat Cycles
Per Hour - Stage 2
THX9321 PRESTIGE
Table 4. Installer Setup (ISU) Table. (Continued)
Settings Default
Off
3
3
35
®
2.0 AND THX9421 PRESTIGE
Residential,
Commercial Requires
or Both EIM
Both No ISU 3120 Backup Heat Outdoor Temperature
Lockout requires an outdoor sensor.
This ISU is only displayed if ISU 2010 Heating
Equipment Type is Air to Air Heat Pump,
Geothermal Heat Pump or Geothermal Radiant
Heat and ISU 2190 External fossil fuel kit is set
to Thermostat Controls Backup Heat.
See "Heat pump with outdoor temperature
lockouts" beginning on page 100.
Both No ISU 3010 Temperature Control Options must
be set to Advanced to view or adjust cycle rate.
This ISU is only displayed when ISU 2010
Heating Equipment Type is Geothermal
Radiant Heat.
The thermostat automatically defaults to the
recommended setting for Geothermal Radiant
Heat (3 CPH).
Cycle rate limits the maximum number of times
the system can cycle in a 1 hour period
measured at a 50% load. For example, when
set to 3 CPH, at a 50% load, the most the
system will cycle is 3 times per hour (10
minutes on, 10 minutes off). The system cycles
less often when load conditions are less than or
greater than a 50% load.
Both No ISU 3010 Temperature Control Options must
be set to Advanced to view or adjust cycle rate.
This ISU is only displayed when ISU 2010
Heating Equipment Type is Geothermal
Radiant Heat.
The thermostat automatically defaults to the
recommended setting for Geothermal Radiant
Heat (3 CPH).
Cycle rate limits the maximum number of times
the system can cycle in a 1 hour period
measured at a 50% load. For example, when
set to 3 CPH, at a 50% load, the most the
system will cycle is 3 times per hour (10
minutes on, 10 minutes off). The system cycles
less often when load conditions are less than or
greater than a 50% load.
®
IAQ WITH EIM
Notes
68-0311—07